B is the second letter of the Alphablocks gang. She is also D's younger sister, who plays the bass guitar.
B is voiced by Lizzie Waterworth.
She is a light blue block with an orange star on her right eye and gentle eyelashes.
She is light grey and her star is red.
- "Show us what's behind your back."
- "Bother! I can't sleep."
- "Hello. What's a boy?"
- Out of all the blue Alphablocks, she has the lightest blue body.
- Her letter represents 11 in Hexadecimal.
- Her capital shape makes the "v" sound in Cyrillic languages.
- She is representing the fact that B is for band and bass guitar.
- B is right handed, as she usually plays a right handed bass.
- Alphablocks (first appearance)
- Moon (sound only)
- Sail (cameo)
- Jaybird (sound only)
- Magic (no solo lines)
- Hill (sound only)
- On (sound only)
- Snowman (cameo)
- Frog on a Dog (sound only)
- Song (sound only)
- Thing (sound only)
- Card (sound only)
- Alphabet (sound only)
- Mine (sound only)
- Home (sound only)
- Blue (sound only)
- Birthday Girl
- Band Together
- Letters to Santa (last appearance)